didyoubuysomewater?英语什么意思?

didyoubuysomewater?英语什么意思?

你买过一些水了吗？解释:因为是过去式所以用did。其陈述句为you bought some water.其句中无助动词，所以变为疑问句要借助助动词did.另外，water不可数，可用much,some修饰，some也可以修饰可数名词。

If you had enough money ,what_____?为什么填would buy,而不是will you buy?

这是一种虚拟语气句式，即与现实相反的意思。if引导的句子常套用“主将从现”原则，即主句用一般将来时，而从句（if后带的句子）则使用一般现在时。虚拟语气中往往用一般过去时取代一般现在时，而用过去将来时取代一般将来时，这也就是句中不用will you buy(体现一般将来时），而用would you buy (体现过去将来时）的原因所在。该句还可以说成：What would you buy if you had enough money ?(此时的if前面一节是主句，后面一节是从句。）

下面分享相关内容的知识扩展：

buy 的用法

是 buy something at+price还是buy something for+price
是buy sth. for+price

buy: [ bai ]
n. 购买,买卖
v. 买
词形变化:
形容词:buyable 动词过去式:bought 过去分词:bought 现在分词:buying 第三人称单数:buys

例句与用法:
1. Money can't buy happiness.
金钱买不来幸福。
2. They bought peace with their freedom.
他们牺牲自由换取和平。
3. It's a good buy at that price.
这是一笔价钱合算的买卖。
4. Did you buy your car new or second-hand?
你买的汽车是新的还是旧的?
5. I bought this watch (from a friend) for 10.
这个表我是用10英镑（从朋友那里）买的.
6. No one will buy that excuse.
谁也不会相信那个借口.
7. Where did you buy that coat?
那件大衣你是在哪儿买的?
8. He gave his children the best education that money could buy.
他不惜花费金钱让孩子得到更好的教育.

英英解释:
名词buy:
1. an advantageous purchase
同义词：bargain, steal

动词buy:
1. obtain by purchase; acquire by means of a financial transaction
同义词：purchase
2. make illegal payments to in exchange for favors or influence
同义词：bribe, corrupt, grease one's palms
3. acquire by trade or sacrifice or exchange
4. accept as true
5. be worth or be capable of buying

did you 后面要用过去式吗

后接动词原形 比如Did you buy/go....

www.71buy.com

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